Installing argtable2 on DOS/Windows systems with date and regex support
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These instructions are provided by Paolo Bormida <paolo.bormida@fastwebnet.it>

1) Install MINGW and MSYS (these instructions are based on those tools).
2) Install a regular expression library such as the TRE library from
   http://www.laurikari.net/tre.
3) Install GnuWin32 LibGW32C (GlibC Windows port) from 
   http://gnuwin32.sourceforge.net/packages/libgw32c.htm
4a) Unpack LibGW32C and TRE in a folder of your choice.
4b) Unpack argtable2 in a folder of your choice and (optional) create a
    "build" folder under it.
5) Run MSYS shell
6) Move into argtable root folder (if you created a "build" folder move into it)
   with CD
7) Run argtable2 "configure" script with the following command line
   configure --prefix=<argtable root folder> 
   CPPFLAGS="-I<tre root folder>/include/tre -idirafter <gw32c folder>/include/glibc" 
   LDFLAGS="-L<tre root folder>/lib -L<gw32c/lib" 
   LIBS="-ltre -lgw32c"

   N.B If you created a "build" folder in step 4b run "../configure" instead ;-)
		
   You will get a makefile to build argtable with (good) support for regular
   expressions and (poor) support for date arguments. The problem is that the
   strptime implementation in LibGW32C is rather poor, does not take locale into
   account (at least so it seems to me by looking at the code)